Application field： The ultra low-temperature freezer is provided to departments of medicine, health, chemical industry, scientific research, etc. for low-temperature freezing, storage, test. Machine setup compressor protection program when the external environment temperature is too high, the press will work for a long time, the compressor will stop working, and the machine will enter the self-protection program; Solutions 1. Shut down, let the machine stand for more than 4 hours, and restart2. Lower the indoor ambient temperature or place the refrigerator in an air-conditioned room things to note： If the transformer is not used, only 220V voltage can be connected. There is a separate transformer in the refrigerator package. Only the transformer can be plugged into the 110V power supply!!! Parameters： Model：DW-86W20 Size：780*410*515mm Inner Size：327*200*305mm Temperature：-40°C to -86°C Input Power：270W Voltage：220V/60Hz（Equipped with a transformer, which can convert 110V voltage） Defrost：Manual Package：Wooden Box Package easy to move： The ultra-low temperature refrigerator weighs 27.5KG (60LB) and can be easily moved by adult men. Safety buckle： The refrigerator lid has a self-locking function to ensure the airtightness of the refrigerator Ultra-low temperature The minimum temperature of the refrigerator can be switched from 0 to minus 86°, and the precise temperature control panel Fast cooling It only takes 1 minute to freeze the frost (pictured above) and can be cleaned with the snow shovel and gloves included in the package Product includes: refrigeratorGlovestransformermanual Good sealing Silicone gaskets make refrigerators more airtightWhen placing items: put in a small amount multiple times; It's best to put it in frozen; This avoids overload when the temperature difference inside the refrigerator is too large. Parameter description SP - Shutdown temperature. When the temperature is lower than or equal to the shutdown temperature SP, the compressor will stop running (r1 to r2). r0 -- return difference temperature. When the temperature is higher than the startup temperature (SP+r0), the compressor runs r1 - Minimum shutdown temperature r2 - The maximum shutdown temperature P1 -- Temperature calibration. Used to compensate for measuring temperature P4 -- Probe shows temperature with or without decimal point A0 - Overtemperature alarm return error. When the temperature is lower than (high temperature alarm value -A0) or higher than (low temperature alarm value +A0), cancel the high temperature alarm A1 -- Overtemperature alarm High temperature alarm value = (SP+R0+A1) Low temperature alarm value = (SP-A1) A2 - The overtemperature alarm is prohibited during power-on. The alarm of overtemperature is prohibited during the A2 time when the power is just on A8 -- Overtemperature alarm delay. When the temperature exceeds the limit, the timer will start. When the time reaches A8, the alarm will start H5 - Advanced parameter access password c0 -- Minimum downtime c2: Compressor start-stop state when the probe is faulty P4 - Indicates whether to display decimals Parameter setting Setting the temperature (SP) is the only parameter that can be set without entering a password. Press the SET key.SP will appear on the screen. Press SET again. The SP temperature is displayed. You can use ↑ and ↓ to adjust the SP temperature Press SET to confirm setting temperature. Press the SET key and DOWN key at the same time to exit the parameter setting, or wait for one minute, the display will automatically exit the setting interface. The latest upgraded car refrigerator: larger capacity, lighter weight, can be connected to the car power supply "B0CF5J3F79" Press and hold the SET key for 8 seconds, and the screen will display the input setting password (the factory initial password is 0). Users can use the ↑ and ↓ keys to change the password. Press the SET key to enter the password. If the password is correct, enter the first parameter setting (SP). Use the ↑ and ↓ keys to set the desired value. Press SET key to exit parameter setting. Repeat until all parameters are set. Press the SET key and DOWN key at the same time to exit the parameter setting, or wait for one minute, the display will automatically exit the setting interface. Turn off the thermostat and press and hold the SET key while powering on to restore the password to 0 Led indication, buzzer and display information The OUT on the LCD screen indicates whether cooling is taking place. When cooling is going on, the display light is steady on; While the thermostat is waiting for minimum downtime (50% on 50% off) Normally, the temperature of the probe will be displayed on the display. In the case of alarm, the displayed information is as follows (alarm indicator light on, buzzer sounds) : 000 -- Temperature probe rod fault -- short circuit fault ALH -- high temperature alarm ALL -- low temperature alarm Alarm confirmation In case of alarm, the internal buzzer and alarm indicator are activated to display the corresponding message. The buzzer can be silenced by pressing the SET key. Ultra Low Temperature Freezer-20L Ultra Low Temperature Freezer-80L Ultra Low Temperature Freezer-28L Ultra Low Temperature Freezer-50L Ultra Low Temperature Freezer-58L Ultra Low Temperature Freezer-58L Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 4.2 out of 5 stars 17 4.2 out of 5 stars 17 4.2 out of 5 stars 17 4.2 out of 5 stars 17 4.2 out of 5 stars 17 4.2 out of 5 stars 17 Price $1,896.00$1,896.00 $4,699.00$4,699.00 $2,599.00$2,599.00 $3,399.00$3,399.00 $3,399.00$3,399.00 $3,799.00$3,799.00 Opening mode Upper door Upper door Upper door Upper door Upper door Side Door Power supply voltage 220V/60HZ with Transformer 110V/60HZ with Transformer 110V/60HZ 110V/60HZ 110V/60HZ 110V/60HZ Temperature -86°C~25°C -86°C~25°C -86°C~25°C -86°C~25°C -86°C~25°C -86°C~25°C Volume 20L 80L 28L 50L 58L 58L Net weight 84LB 187LB 123LB 158LB 253LB 238LB Power 270W 450W 300W 380W 380W 450W
